AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
An ecosystem is a system where all living organisms (biotic components) and physical surroundings (abiotic components) interact with each other. In a pond ecosystem, fish is a biotic component and sunlight/water is an abiotic component.
Source: Chapter 13, Section 13.1
This question is worth only 1 mark, so one clean sentence covering the definition plus the two examples is sufficient. Examiners look for: (1) the idea of interaction between living and non-living components, (2) one correct biotic example (fish, aquatic plants, frogs, etc.), and (3) one correct abiotic example (water, sunlight, temperature, minerals, etc.). Do not write more than 2 lines.